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Unhealthy Foods Go Down on the Popularity Chart
"To compensate for food environments where healthful foods (i.e., fresh fruits and vegetables) tend to cost more, public health professionals and politicians have suggested that foods high in calories, saturated fat or added sugar be subject to added taxes and/or that healthier foods be subsidized," the authors write as background information in the article. "Such manipulation of food prices has been a mainstay of global agricultural and food policy, used as a means to increase availability of animal foods and basic commodities, but it has not been readily used as a mechanism to promote public health and chronic disease prevention efforts."
Kiyah J. Duffey, Ph.D., of the University of North Carolina at Chapel Hill, and colleagues assessed the dietary habits of 5,115 young adults (age 18 to 30) beginning in 1985 to 1986 and continuing through 2005 to 2006. Food price data were compiled for the same timeframe. Participants' height, weight and blood levels of glucose and insulin were also collected and a measure of insulin sensitivity was calculated.
Over the 20-year period, a 10-percent increase in price was associated with a 7-percent decrease in the amount of calories consumed from soda and a 12-percent decrease in the amount of calories consumed from pizza. A one-dollar increase in the cost of soda or pizza was also associated with a lower overall daily calorie intake, lower body weight and an improved insulin resistance score, and a one-dollar increase in the cost of both soda and pizza was associated with even greater changes in these measures.
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More News on: Why Do We Eat - Nutrition Facts, Diet Lifestyle and Heart Disease, Hunger Fullness and Weight Control, Label Lingo on Food Items: Decoded
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